Many of bees caused a trouble

It was Boeing 737 which took off from Bournemouth Airport at 8:10 a.m. on May 24. But trouble happened to an engine just after that. It was going to go to Faro of Portugal, but say that the pilot decided to return to an airport for safe confirmation. Many of bees seem to have damaged a fan of engine. I think that mass outbreak of a bee was caused by global warming.